Paul rizzoni



(No Model.) Q

- P. BIZZ AXLE ARM FOR R WAY CARS. No. 465,204. Patented Dec. 15, 1891.

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1 UNITED STAT S PATENT O FI E.

PAUL RIZZONI, OF ST; PETERSBURG, RUSSIA.

AXLE-ARM FOR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 465,204, dated December 15, 1891.

Application filed May 7, 1891. Serial No. 391,905. (No model.)

To all whom it may concern.-

Be it known that 1, PAUL RIZZONI, a subject of the Emperor of Russia, residing at St. Petersburg, Russian Empire, have invented new and useful Improvements in Axle-Arms for Railway-Carriages, of which the following is a specification.

The improvement in the present construction of axle-arms refers to a casing of the axlearm in such a manner that this casing, after having been worn out or damaged,can easily be replaced by a new one, so that the real axle-arm A is not afiected by the use.

In the accompanying drawings, Figure 1 is a vertical longitudinal sectional view of a railway-axle bearing provided with myimproved axle-arm, said section being taken on the line 1 1 of Fig. 2; and Fig. 2 is a vertical transverse sectional view of Fig. 1.

Similar lette s of reference vindicate corresponding parts.

The casing B consists, as can be seen from the drawings, of a jacketing of brass, bronze, or any other suitable alloy,which is cast round the axle-arm and then' turned off. In order that the jacket-ing be irremovably connected 7 with the axle-arm A on the latter, cavities a,

Fig. 2, are worked with a chisel, drill, ($50.,

secured against rotation and shifting on same and can only be removed by destroying. If anew jacket is required, it can be cast on the axle arm or journal, from which the old one can be removed by destroying it. Instead of making cavities into the axle-arm, the same can be also provided with elevation at, Fig. 1, in order to hold the jacketing. The axle-bearing O for this axle-arm A B is con structed of steel or iron.

I claim as my invention The combination, with the axle-arm of a railway car or carriage, of a fixed jacketing of brass, bronze, or other material on said axle-arm, said jacketing and axle-arm being locked together and engaged by means of projections and recesses, said recesses being filled by the casting, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

PAUL RIZZONI. Vitn esses:

EDUARD PEITZ, W. HAUPT. 

